Unused pins of 74HC595

Parts Questions
1

I’m working on a further development for the MF-Board (stronger drivers, stronger voltage regulator, smaller diods which should make the H-bridge more agile) for better support of high quality faders with coreless motors.

For the reason, that I don’t want to spend the money to always populate a whole board (8 drivers) for testing, I’d like to try different setups on one board.

Does anybody know if I have to do something with the free pins of the shift register? Can I just leave them open?

Thanks and greets

Roger

PS: If I don’t have success, I will go “back” to the old more costly setup with the analog circuitry. (It’s the way, it’s done in large format consoles)

http://www.ucapps.de/mbhp/mf/mf_comp_release2.gif

2

Does anybody know if I have to do something with the free pins of the shift register? Can I just leave them open?

I’m assuming you mean can you leave unused output pins open and not connected to anything, and the answer is yes, there’s no problem doing that.

3

I’m assuming you mean can you leave unused output pins open and not connected to anything

… yes that’s what I meant

Thanks Wilba

Greets, Roger